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J. Sens. Actuator Netw. 2015, 4(3), 189-207; doi:10.3390/jsan4030189

A Long-Range Directional Wake-Up Radio for Wireless Mobile Networks

Institute of Information Science, Academia Sinica, 115 Taipei, Taiwan
Commonwealth Scientific and Industrial Research Organisation, Pullenvale, 4069 QLD, Australia
Commonwealth Scientific and Industrial Research Organisation, Marsfield, 2122 NSW, Australia
Department of Computer Science, University of California, Irvine, 92697-2625 CA, USA
This paper is an extended version of our paper published in Shih, W.C.; Jurdak, R.; Lee, B.-H.; Abbott, D. Improving the throughput of sensor network wakeup radios using block orthogonal codes. In Proceedings of the Annual International Conference on Mobile Communications, Networking and Applications (MobiCONA), Singapore, 2011.
Author to whom correspondence should be addressed.
Academic Editors: Sunil Kumar, Fei Hu and Michael Medley
Received: 23 May 2015 / Accepted: 14 July 2015 / Published: 3 August 2015
(This article belongs to the Special Issue Directional Antenna Enhanced Wireless Ad Hoc and Sensor Networks)
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This paper describes a long-range directional wake-up radio (LDWuR) for wireless mobile networks. In contrast to most wake-up radios (WuR) to date, which are short range, ours is applicable to long-range deployments. Existing studies achieve long distance by using modulation and coding schemes or by directional antennas, though the latter require exploring the direction of the transmitter. To address this issue, our LDWuR adopts both static and dynamic antennas, where the static ones are directional, while the dynamic ones are omnidirectional for beamforming. We present our LDWuR prototype and design principle. Simulation results show that our LDWuR and event-driven MAC protocol suppress the idle-listening of Wi-Fi stations in a wireless network, thereby enhancing the Wi-Fi power savings. View Full-Text
Keywords: directional antenna; wake-up radio; beamforming; wireless mobile networks directional antenna; wake-up radio; beamforming; wireless mobile networks

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Shih, W.-C.; Jurdak, R.; Abbott, D.; Chou, P.H.; Chen, W.-T. A Long-Range Directional Wake-Up Radio for Wireless Mobile Networks. J. Sens. Actuator Netw. 2015, 4, 189-207.

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